Instagram's Quiet Mode lets you pause notifications
Instagram has taken out of testing a feature that lets you temporarily silence push notifications on the app. Quiet Mode is one way to prevent people from getting in touch with you there when you want to take a break. It will send automatic replies to users who try to message you on the platform. It will also show an "in quiet mode" status on your profile to let others know you're not looking at interactions on the app.
You can schedule specific times when the feature is automatically activated. It'll also give you a summary of notifications you might have missed when you return.